DHL Express Canada suspended its delivery service across the country June 20, as workers continue to strike, and new federal legislation banning replacement workers comes into effect.

According to CBC, more than 2,000 DHL workers represented by Unifor — including truck drivers, couriers and warehouse and call center employees — have been on strike since June 8 after the German-owned delivery company locked them out following a breakdown in negotiations with the union. 

Read More: DHL Express Canada Workers on Strike Following Lockout

The stalled negotiations have been exacerbated by a new federal law barring replacement workers from filling the role of federally regulated employees who are on strike or are locked out. DHL continued operations for the first dozen days of the work stoppage, but began to suspend operations as the legislation loomed. 

Unifor has said its bargaining priorities with DHL revolve around wages, working conditions and surveillance and automation in the workplace.

DHL’s customers in Canada include Lululemon, Shein and Siemens.